问题
选择题
We were delayed at the airport．Otherwise，we here by lunch．
A．must have been
B．could be
C．should be
D．would have been
答案
D
题目分析：句意：我们都在机场被耽搁了，否则我们就能在午餐前到这里了。We were delayed at the airport．是过去的事情，otherwise相当于一个虚拟条件句：If We hadn’t been delayed at the airport．所以主句用would have done。选D。